Package whatever MSVC++ runtime is required, too. List of some files or link to installer. Unsure whether to mention this to builders at all. Should it be on github's main readme, on homepage, in build notes, ...?
Write build notes for building Lix with LDC. This differs considerably from the DMD Win32 build.
Remove the 32-bit Windows Lix icon from dub.json.
Compile a 64-bit icon and instruct 64-bit Windows builds to link it into the executable.
Give LDC's linker the correct linker flag for subsystem:windows to suppress ton console.